Regulator Uriah ‘Frag’ Soloman is a Metallican gunslinger from Gunmetal City Hive of Scintilla. He originally came to the attention of the Inquisition due to his success in slaughtering heretech cultists during the internecine gang conflicts in the lower Infernis region of Gunmetal city – hence earning the nickname ‘Frag’ due to his capacity for indiscriminate destruction to friend and foe alike.

Frag has had a surprising longevity for an Inquisitorial Acolyte – a testament to both his gunslinging skill and reflexes. However, a lifetime of living on a knife edge has taken its toll on him physically and he knows he is slowing down with age, leading him to compensate with judicious use of his Reflex stimulant inhaler. Deep down Frag knows that if he isn’t killed by heretics then his drug addiction probably will soon: he holds out the hope that he will be able to scavenge a suitably valuable item of archaeotech from The Chapel to fund his retirement.

This is actually a repurposed NPC from a Dark Heresy campaign I ran a few years ago. Worth a look at for inspiration. Not sure if anything is in print now that Fantasy Flight no longer have the GW license.